Lebese, Parker and Rusike all got on the scoresheet as AmaKhosi claimed the trophy after a dominant season.
Chiefs started with intent and almost got ahead as early as the fifth minute, when George Lebese missed the target with a headed effort. But Lebese was ready for the next chance that came his way, latching onto Katsande's through-ball to open the scoring on 27 minutes.
It got even better for Amakhosi just after the half-hour mark when Bernard Parker was let in for their second to put one finger on the trophy despite a late effort from Polokwane to get back in the game before the break.
The celebrations had started early before Ndou struck for City just a couple of minutes before. Rusike then scored his second to restore the home side's three-goal cushion.
Rusike and Tshabalala both came off late on for Mthembu and Maluleka respectively, with the win just about secured and the celebrations ready to begin.